Westmark Credit Union is a member-owned, not-for-profit financial cooperative headquartered in Idaho Falls, Idaho, serving over 75,000 members across 15 branches throughout Idaho. Founded in 1954 as Atomic Workers Credit Union, it has grown through multiple mergers and now operates as a full-service financial institution offering checking, savings, loans, mortgages, and digital banking services. The credit union is federally insured by the NCUA and reinvests profits into member benefits rather than shareholder returns.
